We show that the asymptotic symmetries close to nonextremal black hole horizons are generated by an extension of supertranslations. This group is generated by a semidirect sum of Virasoro and Abelian currents. The charges associated with the asymptotic Killing symmetries satisfy the same algebra. When considering the special case of a stationary black hole, the zero mode charges correspond to the angular momentum and the entropy at the horizon.
Supertranslations and Superrotations at the Black Hole Horizon / Donnay, Laura; Giribet, Gaston; González, Hernán A; Pino, Miguel. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 116:9(2016), pp. 1-6. [10.1103/PhysRevLett.116.091101]
Supertranslations and Superrotations at the Black Hole Horizon
Donnay, Laura;
2016-01-01
Abstract
We show that the asymptotic symmetries close to nonextremal black hole horizons are generated by an extension of supertranslations. This group is generated by a semidirect sum of Virasoro and Abelian currents. The charges associated with the asymptotic Killing symmetries satisfy the same algebra. When considering the special case of a stationary black hole, the zero mode charges correspond to the angular momentum and the entropy at the horizon.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
